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Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Rules and Regulations Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Chris Baker, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206
2313552; email: christopher.r.baker@
faa.gov.
SUPPLEMENTARY INFORMATION:
Background The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to certain The Boeing Company Model 7378 and 7379 airplanes. The NPRM published in the Federal Register on April 2, 2021 86 FR 17324.
The NPRM was prompted by a report that during refueling of the right main tank, if there is a failure of the automatic shutoff system, the refueling panel does not provide the required indication that
the automatic shutoff has failed. In the NPRM, the FAA proposed to require installing a new FQPU and doing an FQPU software check. The FAA is issuing this AD to address this indication failure to warn the person fueling the airplane, which could cause overfill of the right main tank, spilled fuel, and pooling on the ground that could come in contact with an ignition source, resulting in a ground fire.
Discussion of Final Airworthiness Directive Comments The FAA received comments from Boeing and United Airlines who supported the NPRM without change.
Conclusion The FAA reviewed the relevant data, considered any comments received, and determined that air safety requires adopting this AD as proposed. Except for minor editorial changes, this AD is adopted as proposed in the NPRM.

None of the changes will increase the economic burden on any operator.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing Special Attention Requirements Bulletin 737
281363 RB, dated June 2, 2020. The service information specifies procedures for replacing the FQPU having an incorrect indication threshold with an FQPU with part number 3012806 or 3012858, as applicable, or an FQPU
with a later-approved part number, and doing an FQPU software check. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in ADDRESSES.
Costs of Compliance The FAA estimates that this AD
affects 66 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
Installation and software check

3 work-hour $85 per hour = $255

The FAA has included all known costs in this cost estimate. According to the manufacturer, however, some or all of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators.

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Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more detail the scope of the Agencys authority.
The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA
with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce.
This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

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16:01 Jun 23, 2021

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Cost per product
Parts cost
Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.
For the reasons discussed above, I
certify that this AD:
1 Is not a significant regulatory action under Executive Order 12866, 2 Will not affect intrastate aviation in Alaska, and 3 Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

$0

Cost on U.S.
operators
$255

$16,830

PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20211213 The Boeing Company:
Amendment 3921600; Docket No.
FAA20210017; Project Identifier AD
202001186T.
a Effective Date This airworthiness directive AD is effective July 29, 2021.
b Affected ADs None.

List of Subjects in 14 CFR Part 39

c Applicability
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

This AD applies to The Boeing Company Model 7378 and 7379 airplanes, certificated in any category, as identified in Boeing Special Attention Requirements Bulletin 737281363 RB, dated June 2, 2020.

The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

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d Subject Air Transport Association ATA of America Code 28, Fuel.

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